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The humidifier will continue to operate for 2 hours or until the 
humidification set point is reached. 

If the RH set point has not been reached by the end of a call 
for heat, the control will continue to operate the humidifier 
and the HVAC fan until the humidification set point is reached 
or 2 hours have elapsed.

When the “Blower Activation Switch” is in the “OFF“ position, 
the humidifier control will only operate the humidifier if 
humidity is required and the HVAC system fan is operating 
or the HVAC system is producing heat.

NOTE: 

If used in conjunction with a Communicating 

Thermostat, and the blower activation feature is desired, DO 
NOT wire the A B communication terminals.

Your EnviroAire IAQ Humidifier Control is installed in the 
cold air return duct. During the first heating season, your 
Humidifier Control needs to be set initially to match your 
home’s condition. Please follow these steps when adjusting 
your control (refer to 

Figure A

).

AUTOMATIC MODE

1. Turn the dial setting knob to “5”, which is within the normal 
range. During the next 24-48 hours it may be necessary 
to adjust the dial for more or less humidity, depending on 
your personal comfort and home’s requirements. 

Refer to 

TABLE 3 – Operation Guide on the following page.

2. During the coldest portion of the first heating season, 
minor adjustments may be necessary. This is dependent upon 
your home’s construction. 

Refer to TABLE 3 – Operation 

Guide on the following page.

The RH in your home will now be accurately controlled to meet 
your needs and should not need further adjustment during future 
heating seasons. Make note of the dial setting in the event you 
temporarily move the knob to “OFF” when performing annual 
maintenance of your EnviroAire IAQ humidifier.

When installed in the Manual Mode (see 

Figure B 

 internal 

switch in “MAN” position and “M” in the display), it is 
important to anticipate a drop in outdoor temperature 
and reduce the setting accordingly to avoid excessive 
condensation. For example, with an outdoor temperature of 
20°F the correct setting will be 35% RH. If the temperature is 
expected to fall to 0°F, then merely reduce the setting to 25% 
several hours prior to the temperature change.

MANUAL MODE

See 

Table 1

 for the recommended settings. These settings, 

which are based on years of research, represent a 
compromise between RH levels that would be most desirable 
for comfort and humidity levels that are suitable for protection 
of your home and to avoid condensation on your windows. 
For example, a wintertime indoor RH of 50% may be 
considered ideal for comfort, but unfortunately, it probably 
would result in condensation, which can cause damage to 
your home. Observing the recommended RH levels on your 
Humidifier Control is an important safeguard. Condensation 
of water on the inside surface of windows in the form of 
fogging or frost is usually an indication of too much humidity. 
This same condensation can occur in other areas in your 
home, possibly resulting in damage.

TABLE 1 - OUTDOOR TEMPERATURE/INDOOR RELATIVE HUMIDITY

Outside Temperature

RECOMMENDED RH

Содержание Bypass EA-655

Страница 1: ...Bypass EA 655 Humidifier Bypass Model EA 655 Humidifier Owner s Manual...

Страница 2: ...cing an invigorating comfortable day combines just the right temperature and the right amount of moisture EnviroAire IAQ humidifiers employ the same principle with refinements to give you the optimum...

Страница 3: ...ercentage of what the air can hold Warm air can hold more moisture than cold air can The control has lights which indicate humidifier operation when the Water Panel needs to be replaced and when servi...

Страница 4: ...lowing page The RH in your home will now be accurately controlled to meet your needs and should not need further adjustment during future heating seasons Make note of the dial setting in the event you...

Страница 5: ...r TEST RESET The Test Reset feature allows the humidifier operation to be checked even if there is no call for humidity See Check the Humidifier Operation ADDITIONAL INFORMATION Your humidifier is a p...

Страница 6: ...casion indoor moisture producing activities such as clothes drying cooking showers etc may raise the RH level higher than it should be even though the EnviroAire IAQ humidifier is not operating Tellta...

Страница 7: ...2 Turn off water supply Turn the integral bypass damper 3 to the SUMMER position 3 Press the tabs in the latches on the top and bottom of front cover 1 and pull cover off base with both hands Set asi...

Страница 8: ...5 year period by you to your original supplier together with the model number and installation date of the humidifier THIS WARRANTY SHALL NOT OBLIGATE ENVIROAIRE IAQ FOR ANY LABOR COSTS AND SHALL NOT...

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